• Enter a value (left) and its units (right) in any row, top or bottom.  Enter the new units in the other row.  The converted value will be displayed when you hit <enter>.
• Select unit names from the help area.  Standard abbreviations are used for SI (except ohm) and other common units.
• A prefix may be attached to any unit  following the SI convention (exceptions: D for deka instead of da and u for micron instead of greek letter mu); e.g., 'c' in 'cm' or 'k' in 'kg'.  A list prefixes is given the beginning of the help area.
• The units may be combined with '*' (or '.' or '  ') and '/'.  Everything to the right of '/' is in the denominator.  Use '^' for entering powers.  Examples: kW*h, m/s, J/K.m, btu/h.ft^2.oF.
• The program verifies the compatibility of the units.
• The format of the output values may be changed with the 'digits displayed' text field.
• Report bugs and missing units to msyaml@labs.net